arsenide

[ahr-suh-nahyd, -nid]

ar·se·nide

[ahr-suh-nahyd, -nid]
noun Chemistry.
a compound containing two elements of which arsenic is the negative one, as silver arsenide, Ag3As.

Origin:
1860–65; arsen- + -ide
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Arsenide is always a great word to know.
So is titanic. Does it mean:
any of the electronegative elements, fluorine, chlorine, iodine, bromine, and astatine, that form binary salts by direct union with metals
of or containing titanium, especially in the tetravalent state or three valence state
Collins
World English Dictionary
arsenide (ˈɑːsəˌnaɪd)
 
n
a compound in which arsenic is the most electronegative element

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica
Encyclopedia

arsenide

any member of a rare mineral group consisting of compounds of one or more metals with arsenic (As). The coordination of the metal is almost always octahedral or tetrahedral. In the former case, each metal ion occupies a position within an octahedron composed of six oppositely charged arsenic ions, whereas in the latter each of the metal ions is surrounded by six oppositely charged neighbours arranged tetrahedrally. Structurally the arsenides resemble the sulfides (e.g., galena, sphalerite, and argentite) and are frequently included in that mineral group (see sulfide)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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